// The MIT License (MIT)
//
// Copyright (c) 2015-2017 Simon Ninon <simon.ninon@gmail.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

#include <cpp_redis/builders/builders_factory.hpp>
#include <cpp_redis/builders/reply_builder.hpp>
#include <cpp_redis/misc/error.hpp>

namespace cpp_redis {

	namespace builders {

		reply_builder::reply_builder()
				: m_builder(nullptr) {}

		reply_builder &
		reply_builder::operator<<(const std::string &data) {
			m_buffer += data;

			while (build_reply());

			return *this;
		}

		void
		reply_builder::reset() {
			m_builder = nullptr;
			m_buffer.clear();
		}

		bool
		reply_builder::build_reply() {
			if (m_buffer.empty())
				return false;

			if (!m_builder) {
				m_builder = create_builder(m_buffer.front());
				m_buffer.erase(0, 1);
			}

			*m_builder << m_buffer;

			if (m_builder->reply_ready()) {
				m_available_replies.push_back(m_builder->get_reply());
				m_builder = nullptr;

				return true;
			}

			return false;
		}

		void
		reply_builder::operator>>(reply &reply) {
			reply = get_front();
		}

		const reply &
		reply_builder::get_front() const {
			if (!reply_available())
				throw redis_error("No available reply");

			return m_available_replies.front();
		}

		void
		reply_builder::pop_front() {
			if (!reply_available())
				throw redis_error("No available reply");

			m_available_replies.pop_front();
		}

		bool
		reply_builder::reply_available() const {
			return !m_available_replies.empty();
		}

	} // namespace builders

} // namespace cpp_redis
